BAC Calculator

Calculate Your BAC

Your BAC Results

Current BAC
0.000%
Under legal limit
Peak BAC
0.015%
Maximum level reached
Time to Sober
0h
Until BAC < 0.01%

BAC Over Time

Current Effects

Physical Effects:

  • Mild mood changes
  • Slight relaxation
  • Minor judgment impairment

Risks:

  • Slightly decreased inhibitions
  • Mild alteration in mood

Legal Status:

Under legal limit for adults 21+, may be over limit for under 21

Legal Information

Legal Limits

  • For drivers 21 and older: 0.08% BAC is the legal limit
  • For drivers under 21: Limits vary by state (0.01% - 0.05%)
  • Commercial drivers: 0.04% BAC limit

Important Notes:

  • This calculator provides estimates only
  • Actual BAC may vary based on many factors
  • Never drink and drive, regardless of calculated BAC
  • Always have a designated driver or use a ride service

Standard Drinks Guide

Beer (Regular)

Alcohol: 5.0%

Volume: 355ml

Standard Drinks: 1

12 oz of regular beer (5% alcohol)

Beer (Light)

Alcohol: 4.2%

Volume: 355ml

Standard Drinks: 0.85

12 oz of light beer (4.2% alcohol)

Wine

Alcohol: 12.0%

Volume: 148ml

Standard Drinks: 1.2

5 oz of wine (12% alcohol)

Spirits

Alcohol: 40.0%

Volume: 44ml

Standard Drinks: 1.5

1.5 oz of 80-proof spirits (40% alcohol)